Pressure indicator for clothes wringers



July 6, 1943. T. J. LITLE, JR 2,323,872

PRESSURE INDICATOR FOR CLOTHES WRINGERS Filed Dec. 9, 1940 LINEN COTTON SILK . INVENTIJR 717017115 .1 1715, JIR

ATTDRNEY Patented July 6, 1943 vireo 'sr wnmosas 1 Wis CLOTHES Thomas J. Litle, Jr., South Bend, Ind., assignor to Easy Washing Machine Corporation, Syracuse, N. Y., a corporation or Delaware Application December 9, 1946, Serial. No..369,870 5 3 Claims. (01. 68 -262) My invention. isconcerned with improvements in a low pressure indicator for a clothes wringer.

It is a well-known fact that certain very thin materials require more pressure to satisfactorily extract moisture than do the heavy, bulky materials such as woolens. Although the average operator of a clothes wringer realizes that a change of pressure is desirable for the most satisfactory operation of a wringer, unless the wringer is equipped with a pressure indicator, the operator must make any pressure adjustment by guess. A number of pressure indicators have been devised to overcome this difficulty; but for the most part they are complicated and contain a series of gears, racks, and linkages, are expensive to build, and not infrequently required service.

An object of my invention is to provide a pressure indicator for a clothes wringer which is simple, positive in action, and cheap to manufacture.

Another object of my invention is to provide a pressure indicator for a clothes wringer which is calibrated in terms of the fabrics being operated upon.

A further object of my invention is to provide a pressure indicator for a clothes wringer having an adjusting screw for varying the pressure, that is directly linked with said screw.

Other objects and advantages of my invention will appear from the following specification and the drawing in which:

Figure l is a perspective view of a conventional power driven clothes wringer.

Figure 2 is a section, parts being broken away, taken through the handle of the pressure adjusting screw of a Wringer equipped with my pressure indicator.

Figure 3 is a section, parts being broken away, taken on the line 33 of Figure 2, showing my pressure indicator and the linkage connecting it to the pressure screw.

Figure 4 is a section, parts being broken away, taken on the line i--5 of Figure 2.

Figure 5 is a development of the cylindrical segment of my pressure indicator.

Referring now more particularly to Figure 1, ii] is a conventional power driven wringer having a frame H, a pair of rolls l2 and I3, a hollow top bar it, and means including the handle l5 for adjusting the pressure between the rolls.

In this type of wringer, the bearings supporting the roll i2 are free to slide vertically in the frame is. A leaf spring [6 contained within the top bar It has its ends pressing down on the bearings that support the roll l2, The pressure adjusting screw ll is rotatably mounted in the top bar I 3 bymeans of the threadecl' bushing' H3. The handle it is provided for turning the. screw ll. The lower end is of the screw ll bears against the spring i 5; thus as the screw. is turned down, the spring it is compressed to increase the pressure between the rolls l2 and i3. A circumferential groove 20 is. provided adjacent the lower end ill. of the-screw ii for a purpose presently to be described. 1 a

The sight aperture 25 is located in thetop' bar id in the upper portion thereof, adjacent the screw ll. A bracket 26 is suitably fastened inside the top bar Id below the sight aperture 25. The inwardly projecting arms 27 of the bracket 26 are provided with apertures 28 for receiving a bearing pin 29.

The pressure indicator is preferably formed from a piece of sheet metal in the shape of a cylindrical segment 30. A pair of arms 3!, preferably formed integrally with the cylindrical segment 36 and projecting radially inward, are located at the opposite ends of said cylindrical segment. The arms 3| are provided with suitable apertures to admit the bearing pin 29. A tongue 32 located intermediate the ends of the segment 31! projects outwardly therefrom and is provided with an aperture 33. A connecting link 35 is provided at one end with a loop 36 which is mounted in the groove 29 of the screw H. The portion 37 of the link 35 projects outwardly at substantially right angles to the screw l1, and is inserted in the aperture 33 of the tongue 32. The end of the arm 31 may be bent downwardly as at 33, to prevent segment 30 from rotating too far and becoming disengaged from the link 35. The outer surface of the segment 30 may be calibrated as shown in Figure 5, in terms of the materials to be operated upon.

When the wringer and indicator are assembled and the screw I1 i turned so as to contact the spring I6 without compressing the spring, the legend No pressure will appear at the aperture 25. As the screw I1 is turned down further to compress the spring [6, the vertical travel of the screw will be transmitted by means of the connecting link 35 to the cylindrical segment 30 and rotat the segment on the bearing pin 29. Thus as the spring pressure is increased, the succeeding legends will appear at the sight aperture 25. To adjust the pressure of the rolls for .the various fabrics to be treated, it is only necessary for the operator to turn the screw until the descriptiv term appears at the sight aperture.

Although I have shown and described a specific embodiment of my invention, various modifications of form and dimensions will occur to those skilled in the art; and I therefore wish to be limited only by the scope of the appended claims.

I claim:

1. A roll pressure indicator for a clothes wringer having a hollow frame and a roll pressure adjusting screw, comprising in combination, a sight aperture in said frame located at one side of said.

screw, a member having an arcuate outer surface, means for rotatably mounting said'member in said frame behind said sight aperture, indicia on said arcuate outer surface of said member arranged to be visible through said sight aperture, a link carried by said adjusting screw for translational movement together therewith, and means for connecting said link to said member and comprising a, sliding connection therebetween, whereby longitudinal movement of said screw is transmitted by said link to rotate said member causing particular indicia, to appear at said aperture.

2. A roll pressure indicator for a clothes wringer having a hollow frame and a roll pressure adjusting screw, comprising in combination, a sight aperture in said frame located at one side of said screw, a member having an arcuate outer surface, means for rotatably mounting said member in said frame behind said sight aperture, indicia on said arcuate outer surface of said member arranged to be visible through said sight aperture, a link carried by said adjusting screw for translational movement together therewith, an arm connected to said member for producing rotational movement thereof, and an aperture in said arm through which said link extends to form a direct sliding connection between said link and said arm, whereby longitudinal movement of said screw is transmitted by said link to rotate said member causing particular indicia to appear at said aperture.

3. A roll pressure indicator for a clothes wringer having a hollow top bar and a roll pressure adjusting screw mounted in said top bar so as to project downwardly therethrough, comprising in combination, a sight aperture in said top bar located at one side'of said screw, a segment of a cylinder, means for rotatably mounting said segment in said top bar behind said sight aperture, indicia on said segment arranged to be visible through said sight aperture, a tongue projecting from said segment, an aperture in said tongue, a circumferential groove located adjacent the end of said adjusting screw, and a connector comprising a circular portion engaged in said groove and a straight portion engaging said aperture in said tongue, whereby longitudinal movement of said screw is transmitted by said connector to rotate said segment causing particular indicia to appear at said aperture.

THOMAS J. LITLE, JR. 

